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SQL Tutorials

Understanding the SQL CASE Statement with Examples

SQL - Structured Query Language Tutorials

The CASE statement in SQL returns a value for the condition specified. It tests a list of conditions and returns one of the multiple possible …

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SQL (Structured Query Language) – Injection

SQL Tutorials myTechMint

If you take a user input through a webpage and insert it into a SQL database, there is a chance that you have left yourself …

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SQL (Structured Query Language) – Handling Duplicates

SQL Tutorials myTechMint

There may be a situation when you have multiple duplicate records in a table. While fetching such records, it makes more sense to fetch only …

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SQL (Structured Query Language) – Using Sequences

SQL Tutorials myTechMint

A sequence is a set of integers 1, 2, 3, … that are generated in order on demand. Sequences are frequently used in databases because …

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SQL (Structured Query Language) – Sub Queries

SQL Tutorials myTechMint

A Subquery or Inner query or a Nested query is a query within another SQL query and embedded within the WHERE clause. A subquery is …

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SQL (Structured Query Language) – Clone Tables

SQL Tutorials myTechMint

There may be a situation when you need an exact copy of a table and the CREATE TABLE … or the SELECT… commands does not …

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SQL (Structured Query Language) – Temporary Tables

SQL Tutorials myTechMint

What are Temporary Tables? There are RDBMS, which support temporary tables. Temporary Tables are a great feature that lets you store and process intermediate results by using …

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